To make this even worse, Mars' soil is filled with very toxic perchlorate salts.

更糟糕的是，火星的土壤充满了剧毒的高氯酸盐。

It's briny, filled with special kind of salt called perchlorate salts.

它是咸的，充满了一种叫做高氯酸盐的特殊盐。

Or, at least, liquid hydrated perchlorate salts that flow down steep slopes in the warmest Martian months.

或者，至少，液态水合高氯酸盐会在火星最温暖的月份从陡峭的斜坡上流下来。